UFO documents to be released by the Ministry of Defense covers the period from 1987 to 1993.

UFO files show 'close encounter'

A boomerang-shaped object seen from an airport control tower and a woman's encounter with an "alien" are among the secrets revealed in official UFO files.

In November 1989 a "completely terrified" woman contacted RAF Wattisham in Suffolk to report her close encounter with a man claiming to be an alien.

She said she met the fair-haired man with a Scandinavian-type accent as she walked her dog on a sports field. He told her crop circles were caused by others like him who had travelled to Earth and that the purpose of his visit was friendly.